A Yale University law professor says he believes hiding illegal immigrants from Immigration and Customs Enforcement agents is an act of "civil disobedience."

Did he call for doxing ICE employees?

Gregg Gonsalves, an assistant professor of epidemiology and associate professor of law at Yale, also advocated on Twitter for publicly releasing the home addresses of key ICE officials. He said he would have no problem with showing up at their homes, Campus Reform reported.

"I’m such a bad person. I have no qualms about showing up at ICE regional directors’ homes. They can leave their jobs at the office and feel free from scrutiny at home. Lucky them,” a screenshot of the tweet states.

In response, ICE spokesperson Liz Johnson gave the following statement to Campus Reform:

U.S. Immigration and Customs Enforcement (ICE) fully respects the Constitutional rights of all people to peacefully express their opinions. That being said, ICE remains committed to performing its immigration enforcement mission consistent with federal law and agency policy. People can disagree on policy, but it is unconscionable to target our employees and advocate violence against federal law enforcement officers, who put their lives on the line every day to keep our communities safe.

He has apparently criticized the government agency for a while.

In June, Gonsalves tweeted: “[ICE is] raiding restaurants, setting up roadblocks in New England, getting on buses to check for foreigners. We've unleashed something evil in the United States. Let the pundits debate who's winning the day as immigrants get rounded up. The rest of us have to fight.”

In another recent tweet, he stated: “And we hide immigrants from ICE if we have to.”

That led Campus Reform Editor-in-Chief Lawrence Jones to ask Gonsalves if he really meant to show support for “aiding and abetting.”

Part of Gonsalves' reply noted that he has criticized policies of both Republican and Democratic presidents in the past, "including Clinton and Obama."

He blocked Jones’ Twitter account after stating, “It’s called civil disobedience,” according to Campus Reform.

“Aiding and abetting is about facilitating crime,” Gonsalves continued, “here the moral crime is against immigrant children and families, women, and workers.”

He then followed up by saying the release of the addresses would be “a last resort.”

Gonsalves again criticized ICE in May on Twitter. He commented on an image of a person holding a young child above the open mouth of an alligator by writing that the image could be “new logo for ICE,” according to the report.

What did he say to the Southern Poverty Law Center?

After Campus Reform published its story, Gonsalves tweeted to the Southern Poverty Law Center that the publication should be listed as a hate group.

On Saturday, Gonsalves’ Twitter account was set to private and the Tweets are not publicly visible. However, Campus Reform's website showed screenshots and links to his tweets.